South cabolina



Patented Aug. 29, 1916.

T. i. ESTN.

JOMT FOR SECTIQNAL CQLUMNS. APPLICATION FILED FEB. 4, 1915. 1,1 96,057.

IIL I I IIIIIIIIII III i. ..IIEIIIII t THOMAS' I. WESTON, or COLUMBIA, SOUTH cAnoLINA.

JOINT FOR SECTIONL COLUMNS.

Specification of Letters Patent.

.Application filed February 4, 1915. Serial No. 6,175.

To @ZZ 107mm it may concern:

Be it known that I, THOMAS I. lVEs'roN, a citizen of the United States, and resident of Columbia, county ofRichland, State of South Carolina, have invented certain new and useful Improvements in`Joints for Sectional Columns, of which the following is a specification.

This invention has, reference to an yiinproved joint for holding together two parts of a structure such as the parts of a column or pillar made in sections. In the drawing it hasrbeen shown applied to the making of reinforced concrete columns or pillars such as are used to support telegraph wires, but it will of course be'understood that the in# vention is not limitedto that use. It is useful in making any column whether hollow or solid.

It has been` my purpose to s0 make the joints that the parts can be easily and cheaply made and can be. easily assembled and so that when assembled the structure will be very rigid and strong.

The novel features ofthe invention will be apparent from the following description, taken in connection with the accompanying drawing.

In the drawing I have shown a sectional view of a part of a reinforced concrete column embodying my invention.

As`shown in the drawing the'column is mademp of separable sections 1 and 2 which are put together end to end. Thesection 1 may `he made o f concrete hailing the reinforcing material 3 embedded.therein and that section has a tapering socket 4 in its center at the lower end. The socket preferably tapers uniformly from its lower en d to its upper end 5 except for a depression at one point between the ends to form a-key. The depression commences some distance below the upper end 5 and extends gradually outward on the line 6, the lower end of the depression forming a shoulder 7" facing toward the smaller inner' end of the socket.

The lower member 2 of the .column has a central projection 8 which yis tapered to correspond ,to the taper of the socket 4. This projection also hasdepressions ofits surface corresponding to the .depressions in the socket,l the surface 9 ofthe depression commencing some distance above the lower end of the projection and extending gradually inward to a point some distance below the'top or upper end of the projection, there tion.

.may be placed along ther outer 'part-of the Patented Aug. '29, 19516.

forming the shoulder 10. The meeting faces i of the members 1 and 2 ,outside of the ,projection and socket are preferably formed on a slight downwardly *extendingangle on the line 11, and the projection and socket have such relative size'tlfit the socket will come in contact with the projection through-- out the tapered surface, slightly before the line 11. This insures a close and tight fit.

(asV

when the upper' member 1 is placed-in position, since it will make close contact with the projection because of its weight. A passageway 12 may be provided through the upper member to the space or keyway formed bythe depressions on the lines .6 and 9 so that a cement or filling material may be inserted into the lkeyway after the parts are assembled. Vhen, this filling material hardens in place it will, because of the shoulders 7 and 10, actas a key preventing the separation of the parts. Sonie cement may also be placed on top of the member 2 along the lines-11 so as to fill the spacewhen the-parts are in position. The upper member may be 'made with a hollow center 13 and the lower member may also be made hollow at 14, and in' that case the central projection S may be made solid connected with the outer walls of the hollow section and the reinforcing material 15 may be extended from the body of the material in the hollow section on an incline up into the projection and will preferably be extended practically to the point in concrete construc- Additional reinforcing material 16 body.

It will be observed that the tapering walls of the socket and projection tend to easily and properly'center the parts and thegrad. ual taper of the Vwalls 6 and S) tends to guide the projection into position` since the wall 6 on the socket tapers toward the point of the socket and the wall 9 of the projection tapers toward' the' base of the projection. It `will be noted' that the bearingv surface between the projection and the socket extends throughout to materiallyvthe length-of the socket both at the top and at the bottom so as to furnish a firm support.

Having thus described the invention what is claimed` is, a

lLAA column construction, comprising a pair of members, one of which has a central los tapering cli tand the otherof which'has a central tapering projection,'the said pro, jeotion tting closelyfin said socket throughout an extended portion longitudinally of sizesgoithe socket and projecti n being such that"'th'e Lparts wili it together tightlyjust before the outer end of the socket reaches 1D tionfand socket being provided with a keywap-'between the ends 'of said projection, andaneans for supplying1 ailiing material to said leyway to locljrfthe'v parts together."

2; A reinforced concrete construction comprising a pair of members, one of which l* tral'tapering socket. and the other of which has a central taperingV projection, the said projection fitting closely- 1n said socket I Lthroughout an extended portion longitudi- 5 said projection at both ends,`the relative nally of said projection at bothends, the relative sizes of the socket and projection being such that the parts will fit together tightly justv beforethe outer end of the the inner end of the projection, the projecsocket reaches the inner end of the projection, the projection. and socketbeing provided with a keyway between the ends of said projection, the wall of the keyway in the projection tapering gradually inward toward the small inner end of the projection, and the Wall ofthe keyway in the socket tapering gradually toward the inner end of the socket, whereby the parts will be properly centered when pushed together, and means for supplying a filling material to said keyway.

'In testimony whereof I affix my signa' of two witnesses.

ture in presence t THOMAS I. WESTON.

Witnesses:

LAURA TUCKER,

N. DORMAN. 

